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/**
* Tests that recipient ignores createIndex on non-empty collections during oplog application phase.
* If the recipient sees a createIndex oplog entry and the collection is no longer empty, the index
* is guaranteed to be dropped after because we block explicit index builds on the donor for the
* duration of the tenant migration.
*
* @tags: [requires_fcv_49, requires_majority_read_concern, incompatible_with_windows_tls,
* incompatible_with_eft, incompatible_with_macos, requires_persistence]
*/
(function() {
"use strict";
load("jstests/replsets/libs/tenant_migration_test.js");
load("jstests/libs/uuid_util.js");
load("jstests/libs/fail_point_util.js"); // For configureFailPoint().
const tenantMigrationTest = new TenantMigrationTest({name: jsTestName()});
if (!tenantMigrationTest.isFeatureFlagEnabled()) {
jsTestLog("Skipping test because the tenant migrations feature flag is disabled");
return;
}
const kTenantId = "testTenantId";
const kDbName = tenantMigrationTest.tenantDB(kTenantId, "testDB");
const kCollName = "testColl";
const donorPrimary = tenantMigrationTest.getDonorPrimary();
const recipientPrimary = tenantMigrationTest.getRecipientPrimary();
const hangAfterRetrievingStartOpTime = configureFailPoint(
recipientPrimary, 'fpAfterRetrievingStartOpTimesMigrationRecipientInstance', {action: "hang"});
const migrationId = UUID();
const migrationOpts = {
migrationIdString: extractUUIDFromObject(migrationId),
tenantId: kTenantId,
recipientConnString: tenantMigrationTest.getRecipientConnString(),
};
assert.commandWorked(tenantMigrationTest.startMigration(migrationOpts));
hangAfterRetrievingStartOpTime.wait();
const donorColl = donorPrimary.getDB(kDbName)[kCollName];
// Create and drop a 2dsphere index on x.
assert.commandWorked(donorColl.createIndex({x: "2dsphere"}));
assert.commandWorked(donorColl.dropIndex({x: "2dsphere"}));
// Insert a document with an x field that would fail to generate a 2dsphere key. If the recipient
// were to reapply the createIndex, the migration would fail.
assert.commandWorked(donorColl.insert({x: 1}, {writeConcern: {w: "majority"}}));
hangAfterRetrievingStartOpTime.off();
// Test that the recipient ignores the createIndex and the migration should succeed.
const stateRes =
assert.commandWorked(tenantMigrationTest.waitForMigrationToComplete(migrationOpts));
assert.eq(stateRes.state, TenantMigrationTest.State.kCommitted);
tenantMigrationTest.stop();
})();
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